docs: def getDateTimeFromGet(request,key):
      '''
      This function just parses the request GET data for the requested key,
      and returns it in datetime format, returning none if the key is not
      available or is in incorrect format.
      '''
      if request.GET.get(key,''):
          try:
              return ensure_timezone(datetime.strptime(unquote(request.GET.get(key,'')),'%Y-%m-%d'))
          except (ValueError, TypeError):
              pass
      return None